	var nowIndex = $('#Nav a.Navon').index();var _index;
	$('#navico').addClass('navico'+(nowIndex+1));
	$('#Nav a').hover(function(){_index = $('#Nav a').index(this);$(this).removeClass('Navun').addClass('Navon');}).mouseleave(function(){_index = $('#Nav a').index(this);if(_index!=nowIndex) $(this).removeClass('Navon').addClass('Navun');});
	$('#Nav').mousemove(function(){$('span#navico').attr('class','navico'+(_index+1));}).mouseleave(function(){$('span#navico').attr('class','navico'+(nowIndex+1));});
		var x = 50,y =90,t = 200;
	var xin = true, yin = true; 
	var step = 1;
	var delay = 50;
	var obj=$("#jxy_div_warning");

	function foverTop() 
	{ 
		var L=T=90;
		var R= document.body.clientWidth-obj.offsetWidth;
		var B = $(window).height()-t;
		
		var top = y + $(document).scrollTop();
		obj.css('top',top);
		x = x + step*(xin?1:-1)
		if (x < L) { xin = true; x = L}
		if (x > R){ xin = false; x = R}
		y = y + step*(yin?1:-1);

		if (y < T) { yin = true; y = T }
		if (y > B) { yin = false; y = B;}
	} 
	var itl= setInterval("foverTop()", delay);
	obj.mouseover(function(){clearInterval(itl)});
	obj.mouseout(function(){itl=setInterval("foverTop()", delay)});
